When making crabs, we usually throw them into the water without tying them (otherwise they will be steamed).

If it is cold water, crabs will attack and tear each other in a narrow space, which may cause pliers to fall off or yellow.

It is recommended to use boiled water, so that the crab will die soon after falling, and the above situation will not occur, which is relatively complete.

Moreover, hot water reduces the heating time and makes the meat more delicate.